Please read this section very carefully. If you do not abide by these rules and regulations, you may be immediately disqualified or have a penalty of 1, 3 or 6 hours added to your race time.


  1. As a racer, you understand the unique nature and requirements of competing in an ultra-long distance trail running race. You will be running all day and night through mountainous terrain and have undertaken the necessary training to compete in such a race.
  2. You are responsible for yourself and have the ability to deal with any problems that may be encountered during the race.
  3. You are able to deal with, on your own without assistance, deteriorating weather conditions (low temperatures, strong winds, rain and snow) and other troubles expected when traveling across mountainous terrain.
  4. You are able to physically and mentally deal with extreme fatigue, stomach problems, muscle pain and mild physical injuries on your own.
  5. You are fully aware that when participating in an outdoor activity such as this race, your safety depends on your own skills and abilities.


Several sections of the race course pass through national parks with designated sensitive wildlife areas inhabited by rare animals and plants. We require everybody to be fully aware of this and strictly abide by the following rules:

  1. The use of trekking poles is prohibited on both the UTMF and STY courses.
  2. Sleeping along the course is prohibited. This is because it will have a large impact on the environment and may also mistakenly lead others to think that you require emergency medical assistance. Please manage your physical condition carefully and rest/sleep at the aid stations.
  3. You must stay on the trail at all times. There will be sections where racers will not be able to pass each other in order to protect the environment. Please abide by all other restrictions that may also applied during the race.
  4. Picking up or damaging plants, animals, fungi and rocks found along the race course as well as within the overall race area is prohibited.
  5. Shortcutting/cutting corners is strictly prohibited due to potential damage to vegetation along the course.
  6. Do not throw any garbage along the course.
  7. Please use the toilets located at each aid station. Also, please carry and use a portable/disposable toilet and use it if you are unable to wait. Do not throw away toilet paper along the trails. All toilet paper must be carried out with you.
  8. In order to reduce energy consumption and lower carbon dioxide emissions, we highly recommend you utilize public transportation or carpool.


  1. If during the race, you encounter another runner or staff member who is injured or sick and unable to move on their own, please give priority to assisting that person by telling race staff or by calling race headquarters for assistance. The emergency telephone number for race headquarters will be written on your race number/bib.
  2. If you come across a racer who is lying down or hunched over along the course, please check to see if they are alright. If they are sleeping or resting, ask them to get up and continue. If the person requires emergency assistance, please give priority to helping that person by telling race staff or calling race headquarters for assistance.
  3. Please treat the local support and volunteer staff with respect and appreciation at all times.
  4. The race course is not on private property owned by the race and will not be closed off to the general public. Please keep in mind that the trails must be shared with the general public (including hikers) at all times. There will be "no passing sections" set up along the race course where you will be prohibited from passing other runners and hikers. In areas where passing is allowed, please do so in a safe place where the trail is wide and remember to slow down, walk and call out to let your presence be known to that person.
  5. Do not damage any property located along the race course.
  6. Portions of the race course passes through special areas and private land that is normally prohibited from entry. Please do not enter areas other than those specified by the race.
  7. The course also passes through residential areas. Please do not make loud noises or sounds when passing through these areas at night.


  1. In order to ensure race safety, race headquarters will prepare and arrange for rescue and medical assistance during the race. However, each participant must recognize and understand that there are risks that may result in injuries and/or accidents associated with trail running. You are responsible for yourself and will be participating in this race at your own risk.
  2. Emergency and first aid tents staffed by a doctor and/or nurse will be located at all aid stations. All aid stations will have telephone communication to race headquarters.
  3. Emergency rescues/procedures will be available to racers as well all those involved in the race (e.g. staff, supporters).
    • If you are out on the course and close to an aid station, doctors, nurses or emergency rescue staff at the aid stations may be able to provide medical assistance out on the course.
    • Please note that, depending on the area, it may take a long period of time for help to reach you.
    • If you receive emergency medical assistance from a rescue crew and/or doctor, please make sure that you get examined by a medical expert at a hospital after the race. Please contact the race office to let them know of your condition after the medical examination.
  4. Doctors and rescue staff have the authority to stop a racer from continuing the race. This will be done by taking off the racer's number card and IC chips.
  5. If you drop out of the race, you can take a race shuttle that will take you back to the finish line or be picked up by your outside support. You can also call a taxi at your own expense.
  6. Depending on your condition, an emergency evacuation may be required. This evacuation will be at the expense of the person being rescued.
  7. In the case of an emergency, if you are unable to reach the race headquarters, you can also call the public emergency number "119" to directly ask for help.
  8. Each registered racer is covered for the following under the race's insurance policy:
    • Death & disability : 5,000,000 Japanese Yen
    • Hospitalization : 3,000 Japanese Yen (per day)
    • Hospital Treatment : 2,000 Japanese Yen (per day)


  1. All racers will be kept track of using IC chips that must be carried by each participant throughout the race. This IC chip will let race headquarters know the time you cross the start/finish lines, aid stations and certain checkpoints. Please make sure you walk/run across the special ground mats to ensure your information is relayed to race headquarters.
  2. When a racer crosses each checkpoint, the IC chips will record the person's name and time.
  3. Racers must always have the IC chips attached to his/her shoes. If you change your shoes at an aid station, you must remember to re-attach the IC chips to the new pair of shoes.
  4. Please hand-in your IC chips after the race.
  5. If you drop out of the race, you must give your IC chips to a race staff member so that race headquarters can be notified.

5-2. Cutoff times

  1. Cutoff checkpoints will be set up at the aid station exit (not at the entrance). Cutoff times are not based on arrival time into the aid station. In order to make the cutoff and continue the race, you must leave the aid station before the cutoff time.
  2. Once you leave the aid station (and go through the checkpoint), you will be disqualified from the race if you return to the aid station after the cutoff time. If you decide to drop out of the race after leaving the aid station due to illness/health issues, you must notify a race staff member and walk back through a separate dedicated pathway to avoid walking across the checkpoint again.
  3. You are allowed to return to the aid station after crossing the checkpoint and still continue the race if it is within the cutoff time. If you decide to return to the aid station to rest, please notify the race staff and use the dedicated pathway to avoid crossing the checkpoint again. Please note, your race time will be recorded as the time you first exit the aid station. Also, you must leave the aid station before the cutoff time or you will be disqualified from the race.


  1. There will be IC chip sensor ground mats located at both the entrance and exit of all the aid stations. Your aid station race time will be recorded as the time you exit the aid station.


  1. The race course will be marked using marking tapes and signs. Race staff will also be positioned along the course. Dangerous areas up in the mountains will be marked by ropes and patrolled by staff in order to reduce risk. (Note: Permission has been obtained from the appropriate land owners and property managers to put up temporary signs and marking tapes).
  2. There will be a "no-passing" section as well as other sections with specific rules/conditions. Please abide by these rules.
  3. Racers will be stopped at road intersections. Please follow the directions given by the race staff at these intersections.
  4. The above signs and markers will be set up just before the race and will be immediately removed after the race.
  5. Racers must carry the detailed course maps with them throughout the race (the maps are included in the mandatory equipment list). Review the maps carefully beforehand to get to know the course and use the maps to find your way back to the course in case you get lost. If you require assistance during the race, these maps will also be useful to help rescuers locate you.


If you decide to drop out of the race, you must notify race staff. Please remove your race card/bib and give your IC chips to a race staff member so that race headquarters can be notified. Once you've dropped out of the race, you will not be able to re-start.

Remember to keep your race card with you as you will need it to retrieve your bags from the bag storage area.

  1. Tell an aid station staff that you've decided to drop out of the race.
  2. You will be able to return to the finish line area by a race shuttle that will stop by the aid stations. This race shuttle will not be available late at night/early morning however, you will be able to rest/sleep in a waiting area provided at the aid stations.
  1. If you need to drop out of the race while out on the race course due to an injury and require assistance, please tell the race staff or contact race headquarters and follow their instructions.
  • It will take time to get help out to you if you are out on the race course. If you are not feeling well, it would be best to make your decision to drop out at an aid station.
  • Please note that there are no rest/sleep areas available at the finish line. We highly recommend that you book a place to stay in case you end up dropping out of the race.



Once your mandatory equipment has been checked by race staff, you may not change your race backpack or its contents. The weight of your equipment must be a minimum of 2kg at the start of the race and upon leaving each aid station. Your equipment must weigh a minimum of 1kg at all times along the race course. There will be an equipment check during the race. If you do not have the mandatory equipment, you will be disqualified from the race.

You are responsible for bringing clothing/gear that provides adequate warmth and rain protection. Make sure you’ve trained with the gear that you intend to use during the race up in the mountains at high altitude, in sub-zero conditions as well as in heavy rain (these are the conditions you may encounter during the race). Make absolutely sure that your clothing/gear will protect you under these severe conditions. You will be required to show your gear at the mandatory equipment check, however, you will be responsible for deciding whether your clothing/gear is adequate to protect you during the race.

  1. Course map (You must download and carry with you the "Detailed Course Map" from the official website) (*1)
  2. Mobile phone (you must be able to make/receive calls in Japan with this mobile phone). The emergency phone number for race headquarters will be written on your racer number card/bib. Make sure your phone is fully charged before the race. You may receive emergency information on your phone before/during the race.
  3. Personal cup for hot/cold drinks at aid stations (minimum 150cc size). Paper cups will not be provided at the aid stations.
  4. Water (you must carry a minimum of 1L of water at the start line and upon leaving each aid station)
  5. Food
  6. 2 lights with replacement batteries for both lights. Remember that battery life will decline in cold temperatures.
  7. Survival blanket (minimum size of 130cm x 200cm)
  8. Whistle
  9. Adhesive elastic tape/band (minimum length of 80cm x 3cm) (*2)
  10. Portable/disposable toilet (*3)
  11. Warm fleece or warm long sleeve shirt. Cotton shirts are not allowed. (*4)
  12. Warm running pants or leggings or a combination of tights/leggings and long socks which cover the legs completely. Cotton pants/leggings are not allowed. (*5)
  13. Warm gloves/mittens and hat that covers your ears. (*6)
  14. Waterproof rain jacket with hood & rain pants (both made of waterproof and breathable membrane such as Gore-Tex or something similar; seams must be seam-sealed) (Item 11. and 12. cannot be used to replace item 14.)
  15. First aid kit (such as band aids, disinfectant, etc)
  16. Overseas travel/accident insurance policy (*7)
  17. Race number card/bib and Race IC Chips (to put on both shoes). These will be given to you at the race.
  18. Flashing reflector light (put this light on your backpack during the race so that cars will be able to see you at night). This light will be given to you at the race.
  • *1 You may download the Detailed Course Maps onto your SmartPhone. However, if your SmartPhone batteries run out during the race and you cannot show the maps, this will be considered the same as not having the maps with you.
  • *2 Bring strong tape that can be used during emergencies such as injuries (e.g. broken bones) as well as emergency repairs (e.g broken equipment)
  • *3 If you use yours during the race, replacements are available at the aid stations.
  • *4 "Warm clothing for the upper body" = mid-layer clothing such as fleece jackets, wool sweaters and light-weight down jackets that create a layer of warm air between you and the fabric. Light weight underwear and base layers are not accepted.
  • *5 "Warm clothing for the lower body" = A. Full-length pants that go down to your ankles. B. Full-length tights that go down to your ankles. C. Short-length tights combined with long-length socks so that your leg is essentially completely covered.
  • *6 Wool and polyester knot caps that provide warmth. Caps, headbands, light weight head coverings (such as Buffs) and jacket hoods are not accepted.
  • *7 For racers coming from overseas and do not live in Japan, it is strongly recommended that you obtain adequate travel insurance coverage for the duration of your stay as medical/emergency rescue fees can be extremely expensive in Japan.
  • The mandatory equipment list provided here is only the minimum. You will be running in severe conditions for two days and one night (one day and one night for the STY) so please ensure that you are well-prepared to manage your own safety and well-being and bring additional gear that you may need to do so. (You may start the race wearing short sleeves and shorts (i.e. you do not have to wear the mandatory clothing), however you must carry with you the mandatory clothing with you at all times.

Compass, bear bell, a change of clothes, sunscreen, vaseline/petroleum jelly, writing utensil/pen, cash

You may use your bear bell up in the mountains but you must put away your bear bell (i.e. stop your bear bell from ringing) when running through residential and town areas both during the day and at night.


  1. There are no drop bags for the STY.
  2. UTMF racers can prepare one drop bag that can be picked up at the A7 Kodomo-no-Kuni Aid Station. A drop bags will be given to you when you pick up your race number. Please bring your drop bag to the start of the race and it will be transported to A7.
  3. You may leave unneeded items in your drop bag during the race.
  4. Your drop bag will be transported to the finish line at Yagisaki Kouen in Kawaguchiko after the race.


A racer may be disqualified or penalized at any time during the race for the following reasons:

  1. Taking shortcuts and/or running off the trails.
  2. Not carrying the mandatory equipment.
  3. Throwing garbage onto the course (this applies to both the race and his/her supporters).
  4. Receiving outside support at other than the stipulated aid stations.
  5. Running with people who are not officially registered in the race as racers.
  6. Cheating (e.g. using other means of transportation, using substitute runners, and other unlawful actions)
  7. Not carrying your IC chips with you.
  8. Not abiding by the instructions given by official race staff including doctors, nurses, and emergency staff.
  9. Continuing to run after the cutoff times.
  10. Doping and the use of prohibited drugs.


The race organization will be responsible for the following:

  • Non-deliberate damage to property by race participants (e.g. plants and animals, objects, trails, etc.)
  • Marking and location of signs identifying the race course
  • Race safety management

Insurance coverage (Liability insurance and property & casualty insurance for race participants, cancellation insurance). It is strongly recommended though, that you enroll in your own insurance coverage plan.


The race organization reserves the right to cancel or cut-short the race for the following reasons:

  • Weather warnings sent by the meteorological agency
  • The inability to ensure runner safety due to risks such as landslides and rockfalls along the course.
  • Natural disasters (or declared warnings issued by the "Tokai Earthquake Prediction Information" and “Tokai Earthquake Warning Information”centers)

In such a case, the race course cannot be changed to continue the race, nor will the race be postponed to a later date.

  • The decision as to whether or not the race will be cancelled will be made on the day before the race or on the day of the race. This will be communicated via the official race website.
  • In the event of an earthquake, hurricane/typhoon, flood, snowstorm, incidents, accidents and/or epidemics, the race organization reserves the right to make judgments and decisions regarding the shortening/cancelling of the race, whether or not there will be refunds, the amount, and the method of communication.


  • There will be race course clean-up events both before and after the race. While participation is not mandatory, we encourage all racers to come help us out and support the race by participating in the clean-up events.
    Environmental clean-up event report 2013 (in Japanese only):
  • An environmental impact study will be conducted along the race course.


  1. Please be aware that there are no entry fee refunds (full or partial) for whatever the reason once you’ve signed up for the race.
  2. Race category changes are not allowed under any circumstances. (e.g. You cannot change from the UTMF to the STY or vice versa)
  3. Your entry (race bib/number) cannot be transferred to another person. If you do so, you, as well as the person to whom you’ve transferred the race bib to, will be prohibited from entering the UTMF/STY in the future.
  4. If you’ve signed up for the race through the Japanese registration system and opted to pay via bank transfer, you must make the payment by the payment deadline or your registration will be cancelled. If we receive your bank transfer after the payment deadline, your entry will be automatically cancelled and your payment will be returned to you minus a service charge.


  1. Food and drinks will be provided at the Aid Stations (A1 – A11). Only water will be provided at the Water Station (W1)
  2. Outside support by family and friends is allowed within specified areas at each Aid Station (with the exception of A1 FUJIYOSHIDA, A2NIJU-MAGARI , W1 Awakura and A11 Narusawa Aid Station,). Only one supporter may directly/physically assist the racer at a time. Outside supporters may only bring one bag with a capacity of less than 30 liters.
  3. The food and drinks at the aid stations are only for the racers and are not for outside supporters. Outside supporters may not enter restricted areas within the aid stations. However, they may rest at designated areas at the aid stations if necessary.
  4. Supporters may not run alongside racers. (No pacers are allowed.)
  5. Outside medical support from doctors and medical personnel is prohibited.